noun · paid search
Match type
Match type is the keyword setting that controls how closely someone’s search has to match your keyword for your ad to show.
In practice
Google Ads has three. Exact match is the tightest and shows for searches with the same meaning as your keyword. Phrase match also covers searches that include that meaning. Broad match reaches related searches too. Brand campaigns usually stick to exact and phrase, so the spend stays on people looking for you.